Schematic Diagram - Protector Section - Sony STR-DA5500ES Service Manual Digest

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3 7 6 3 1 5 1 5 0

5-67. SCHEMATIC DIAGRAM - PROTECTOR Section -

1 2 3
PROTECTOR (F-C) BOARD
A
R1575
4.7k
B
R1576
6.2k
CN1571
7P
BIAS+
FR BIAS+ 1
BIAS+
FR BIAS+ 2
BK
BIAS-
FR BIAS- 3
BIAS-
FR BIAS- 4
POWER
C
FR +PTrE 5
AMPLIFIER
BOARD FR -PTrE 6
CN1572
FR SPOUT 7
(Page 91)
CN1521
14P
BIAS-
FL BIAS- 1
BIAS+
FL BIAS+ 2
BIAS+
FL BIAS+ 3
BIAS-
D
FL BIAS- 4
BL
FL +PTrE 5
R1525
FL -PTrE 6
POWER
FL SPOUT 7
BIAS+
AMPLIFIER
C BIAS+ 8
BOARD BIAS+
C BIAS+ 9
CN1510
(Page 91) BIAS-
R1526
C BIAS- 10
6.2k
BIAS-
C BIAS- 11
C +PTrE 12
E
C -PTrE 13
C SPOUT 14
2SA1038S-RSE-TP
F
R1625
4.7k
T E
L 1 3 9 4 2 2 9 6 5 1 3
G
R1626
6.2k
2SA1038S-RSE-TP
H
I
J
K
L
M
w w w
STR-DA5500ES
4 5 6 7 8
Q1572-1574
Q1572
C1572
0 2SA1038S-RSE-TP CURRENT DETECT
220p R1581
0 47k
-0.2
R1586
R1577 220k
1.8k
6.2
R1579
D1572
20k
1SS133T-72
0
Q1573
2SA1038S-RSE-TP R1578
Q1574
C1573
15k
2SC1740S-QRT
0.01
-0.2
0
R1582 C1574
R1580
15k 10
1.5k
50V
-58.8
R1585
68k
R1531
47k
Q1522
C1522
0
4.7k 2SA1038S-RSE-TP
220p
R1536
0
220k
0 Q1522-1524
R1527
CURRENT DETECT
R1533
1.8k
47k
Q1524
R1529 2SC1740S-QRT
D1522
6.1 R1534
R1528 20k
1SS133T-72
22k
15k 0
Q1523
C1523
0
0.01 C1524
R1532
0 15k 10
50V
R1530
-59.2 1.5k
R1535
68k
R1631 47k
R1636 220k
C1622
0
220p
0
Q1622-1624
CURRENT DETECT
Q1622
-0.1
R1629
2SA1038S-RSE-TP R1633
R1627 20k
47k
1.8k R1634
22k
D1622
C1623
6.1
1SS133T-72
0.01
Q1623 R1628 0
-0.1 15k
C1624
0 Q1624
R1632 10
R1630
15k 50V 2SC1740S-QRT
1.5k
R1635
-59.1
68k
x a o
y
. i
http://www.xiaoyu163.com
8
9 10 11 12 13
R1583
SR BIAS+
47k R1584
22k SR BIAS+
CN1561
4P
SR BIAS-
1 FR +PTrE
SR BIAS-
2 FR -PTrE
(FOR ADJUSTMENT) SR +PTrE
BM
3 FL +PTrE
SR -PTrE
4 FL -PTrE
SR SPOUT
POWER
SL BIAS+
AMPLIFIER
BOARD SL BIAS+
CN1703
SL BIAS-
(Page 91)
SL BIAS-
SL +PTrE
SL -PTrE
SL SPOUT
CN1501
10P
BIAS+
1 FR BIAS+
BIAS+
2 FR BIAS+
BIAS-
3 FR BIAS-
BIAS-
4 FR BIAS- BG
5 DC
6 SHORT
BIAS
7 4/8 BOARD
CN1512
8 LIMT
(Page 87)
9 GND
10 +15V
Q Q
CN1503
SBR +PTrE
8P 3 7 6 3
BIAS+
SBR -PTrE
1 FL BIAS+ (FOR ADJUSTMENT)
BIAS+ SBL +PTrE
2 FL BIAS+
BIAS- SBL -PTrE
BH
3 FL BIAS-
BIAS-
4 FL BIAS-
BIAS+
5 C BIAS+ BIAS
BIAS+
BOARD
6 C BIAS+
BIAS- CN1513
C BIAS- (Page 87)
7
BIAS-
C BIAS-
8
CN1611
4P
1 C +PTrE
2 C -PTrE
(FOR ADJUSTMENT)
NC
3
NC
4
+15V
SHORT
BJ
LIMT
SBR BIAS+
BIAS
SBR BIAS+
BOARD
CN1803 SBR BIAS-
(Page 87)
SBR BIAS-
SBL BIAS+
SBL BIAS+
SBL BIAS-
SBL BIAS-
u 1 6 3
.
89 89
2 4
9 9
14 15 16 17
PROTECTOR (SURR) BOARD
0
Q1772
R1775
C1772 2SA1038S-RSE-TP
4.7k
220p
0
Q1772-1774
-0.2
CURRENT DETECT
R1779
R1776 20k
6.2k
R1777
C1773
1.8k D1772
0.01 1SS133T-72
Q1773
CN1701 2SA1038S-RSE-TP
R1778
14P 0
15k
BIAS+
0 -0.3
1
R1780 R1782 C1774
BIAS+
2 1.5k 10
15k
50V
BIAS-
3
-59.4
BIAS-
4
5
6
R1725 C1722
7
4.7k
BIAS+ 220p
0
8
BIAS+
0
9
BIAS-
10
BIAS- R1726
Q1722
11 6.2k
-0.3
2SA1038S-RSE-TP
12
13
14
R1727
1.8k
R1728 R1729
15k 20k Q1724
Q1723 2SC1740S-QRT
2SA1038S-RSE-TP 6.2
-0.2 D1722
C1723
1SS133T-72
0 0.01
0
R1732 C1724
-59.2 R1730
15k
1.5k 10
50V
Q1722-1724
CURRENT DETECT
R1735
68k
PROTECTOR (SB) BOARD
CN1861
4P
1
1 5 1 5 0 8 9 2
2
3
4
Q1872-1874
CURRENT DTECT
CN1801
14P
R1883 47k
1
GND 2
DC 3
R1881
4 47k
4/8 5
R1879
6 20k
R1886
R1884
7 220k
22k Q1874
2SC1740S-QRT
8
6.1
D1872 C1873
9
0 0.01
1SS133T-72
10
R1882
11
15k R1880
1.5k
12
13
C1874
14 10
50V
R1885
68k
Q1822-1824
CURRENT DTECT
R1831
47k
R1834
22k
R1833
47k
R1829
R1836
20k
220k
6.1
C1823
Q1824 D1822
0.01
2SC1740S-QRT 1SS133T-72
0
C1824 R1832 R1830
10 15k 1.5k
50V
R1835
68k
m
c o
STR-DA5500ES
2
8 9 9
18 19 20 21 22
R1781
47k
R1786 220k
R1783 47k
R1784
22k
6.2
Q1774
2SC1740S-QRT
CN1761
R1785
4P
68k
1 SR +PTrE
2 SR -PTrE
(FOR ADJUSTMENT)
3 SL +PTrE
4 SL -PTrE
R1731
47k
R1736 220k
R1733
47k
CN1704
14P
BIAS+
1 SR BIAS+
R1734
BIAS+
22k
2 SR BIAS+
BIAS-
3 SR BIAS-
BIAS-
4 SR BIAS-
BIAS+
5 SL BIAS+
BF
BIAS+
6 SL BIAS+
BIAS-
7 SL BIAS-
BIAS
BIAS-
8 SL BIAS-
BOARD
9 +15V CN1705
(Page 87)
10 GND
11 LIMT
12 4/8
13 SHORT
14 DC
4 9 8 2 9 9
CN1871
14P
1 SBR BIAS+
2 SBR BIAS+
3 SBR BIAS-
4 SBR BIAS-
5 SBR +PTrE
BN
6 SBR -PTrE
7 SBR SPOUT
POWER
8 SBL BIAS+
AMPLIFIER
SBL BIAS+ BOARD
9
CN1872
10 SBL BIAS-
(Page
11 SBL BIAS-
91)
12 SBL +PTrE
0 R1875
C1872
220p 4.7k 13 SBL -PTrE
0
14 SBL SPOUT
R1876
Q1872
6.2k
0 2SA1038S-RSE-TP
R1877
1.8k
R1878
15k
0
Q1873
2SA1038S-RSE-TP
0
-59.1
0
C1822
220p
Q1822
2SA1038S-RSE-TP
R1825 R1826
0 4.7k
6.2k
0
R1827
1.8k
R1828
15k
0 Q1823
2SA1038S-RSE-TP
0
-59.1
D1821
1SS133T-72